Kinetoscope.



G. J LANG.

KINETOSGOPE.

APPLICATION FILED NOV 23, 1907. 9 1 2, 1 3'? Patented Feb. 9, 1909.

' SSHEETS-SHEET 1.

0 J. LANG.

KINBTOSGOPE.

APPLICATION FILED NOV;23,1907. 91 2,1 3?

Patented Feb. 9, 1909.

s SHBETSHEET 2 lvihwoaao u O. J. LANG. KINETOSCQPE. APPLIQATION FILED 110v. 23, 1907.

91 2, 137. Patented Feb. 9, 1909.

3 SHEETSSHEET 3.

CARL .T. LANG, F OLEAN, NEW YORK.

HEJETOSCOPE.

Specification oi Letters Patent.

Patented Feb. 9, 1909.

Applicmion filed November 23, 1907. Serial No. -E03,522.

T 0 all whom it may concern:

Be it known that I, CARL J. LANG, a citizen of the United States, residing at Olean, in the county of Cattaraugus and State of New York, have invented certain new and useful Tn'iprovements 1n Kinetoscopes, of which the following is a specification.

This invention relates to kinetosoopes of the intermittent-feed type.

An object of the invention is to provide an improved construction by means of which successive exposures are produced. These means include a revolving shutter and also a revolving cut out plate for preventing flickers by throwing shadows which prevent or avoid flickering of the picture on the screen.

A further object of the invention is to pro vide a vertically adjustable frame by means of which the film may be adjusted to proper position with respect to the aperture plate.

A further object of the invention is to provide improved means. for holding the film against the aperture plate and for guiding the same in its movement across said plate.

Another object of the invention is to provide an improved construction for taking up the film on the take-up reel.

Other improvements in the details of the machine will be evident from the following description and the accompanying drawings.

In the drawings, Figure 1 is an elevation of the machine, from the rear. Fig. 2 is a side elevation. Fig. 3 is a vertical section on the line 33 of Fig. 2. Fig. 4 is a vertical section on the line 44 of Fig. 3. Fig. 5 is a horizontal section on theline 5-5 of Fig. 2. Fig. 6 is a detail of the stop motion. Fig. 7 is a detail of the shutter and flicker cut out.

Referring specifically to the drawings, 1

indicates a box frame which supports the operative parts and which is suitably mounted upon sills A at each side. The lower rear part of the sides of this frame is recessed to .geceive the adjustable sliding frame orbox 2 V which is held in position for vertical movement by lugs 4 projecting from the side of the. frame and slidable up anddown on a bar 4 which is fastened to the side frame 1.v The sliding frame is moved u and down by 5 means of a lever e projecting from a cross shaft 6 which is mounted in bearings 0 upon lips f which rest upon the sills A. The shaft 6 carries a toothed uadrant D which engages a rack G which is fastened to and pro- 5 jects downwardly from the side of the frame I 2. By manipulation of the lever the sliding frame is moved up and down, and may be looked in position by any suitable :key or blade inserted between the gear teeth. 01 E the lever handle may be fastened in any suit able way.

Themain shaft 5 extends across the top of the main frame and may be rotated by crank 5* or any other means. At one end the shaft carries the main driving gear 5 which drives a train of gears 6, 7, 8 and 9, the last of which drives the lower sprocket gear 10 and it has a shaft 10 which carries the lower sprockets 10 The gears 7, 8, 9 and 10 are supported by an arm 31 which is fastened to one side of the main frame 1 and extends rearwardly beside the same, with space enough to allow the gear wheels and hubs to clear the movable frame 2. The shaft 7 of the wheel 7 extends through the arm and also through the adjacent side of the frame 1, to help support said arm. The shaft 10 also carries one of a pair of beveled gears 11 the other of which is mounted upon the upper end of a vertical shaft 11 which is mounted at the top in a bearing projecting from the arm 31 and at the bottom in a bearing projecting from one of a pair of arms 14.. At the lower end the shaft 11' has a beveled gear 12 meshing with a beveled gear 13 loose on the shaft 13 which carries a take-up reel T. Said gear 13 carries one member 13 of a friction clutch, the other member 13 of which is pressed to contact by a spring 13 coiled around the shaft. The friction clutch is provided to give the proper tension in winding up the film and to allow slip on occasion, to avoid breaking the film. The arms 14 are secured to and project downwardly from the side plates of the frame 1, and each arm has a lipf which rests on the sills A. The arm at the right is hinged as at 14, so that it can be opened to take out the take-up reel by sliding the same off the shaft. The first wheel 5 also meshes with a counter gear 15'wl1ich drives a spur gear 16 and a beveled gear 17 which latter meshes with a beveled gear 17 on a vertical shaft '18. The gear 17 is formed double with a beveled gear 17 and said gears are held by bearing bracket 17. The shaft 18 the gears 17 a and 17 and also allows said shaft 18 to be raised and lowered at will, in connection with the frame 2, the lower end has a long key 18 which engages and drives a bracket 18* projecting from the side of the which press upon the edges of the film as it frame 2, and said film is held'in contact with ends to receive the nuts 37 by means of g I e aier of said shaft being mounted in a bearing frame 2. The shaft carries a beveled gear 19 which meshes with a beveled gear 19 on a shaft 20 which carries the member 20 of an ordinary stop motion the other member 21 of which is carried by a shaft 21 which carries the intermittent sprockets 21* whereby the intermittent feed of the film is. produced. The film, which is indicated at F, is held in. contact with the sprockets 21 by means of grooved rollers 40 supported by an arm 41 projecting from the bottom of the the sprockets 10 by means'of a grooved roller 31" supported by a bracket 31 mounted on the arm 31. The upper or feed sprockets 26 are mounted on a shaft 25" which has a gear 25 in mesh with the counter gear 15. The film is held to the sprockets by a grooved roller 31 The beveled gear l7 carried by the shaft 18 meshes with a beveled gear 22 on the outer end of a shaft 22 which carries the segmental shutter plate 28, the axis of which is transverse to the frame, whereby said shutter plate revolves in front of the aperture 24 in the front plate of the frame, while the film is moved over said aperture; The shaft 25 carries a spur .gear 27 which meshes with a counter gear 28 which drives a gear 29 fast on a stub shaft 29 which carries at its inner end the flicker cut out 30 which consists of a segmental plate and which is arran ed to revolve around the shutter 23, the s afts 22 and 29 being concentric and located on opposite sides of the frame. The shutter plate 23 revolves in the opposite direction to the cut out, and at the same speed, the latter being one-half the width of the former and of less width than the aperture 24., and 'as the cut-out revolves in front-of the aperture, only a portion of the aperture .is covered, and shadows are thereby thrown which have the efiect of preventing flicker in the picture on the screen.

At the back of the main frame, behind the aperture plate, is a gate 82 which swings on hinges 33 and which carries presser bars 34 slides over the plate. These presser bars are carried by. upper and lower pins 35 having pairings 36 which press said bars against the and the pins are threaded on the outer which the tension and position of the presser bars can be regulated. The gate is provided at the top with a guide roller 31 to guide the film to the aperture plate. At the front the frame 1 has the mount or case 3 for the lens.

The course of the film through the machine is as indicated on'the drawing, feeding from the top sprocket across the aperture 1 plate and then over the intermittent andv lower sprockets to the take-up reel. The

sliding frame 2 may be adjusted up and down to register the film exactly with the aperture plate without varying the position or adjustment of the lower sprocket and its drivin gears. justab e shaft 18 permits the movement of the frame 2, referred to, without interfering with the operation of the machine. a

I claim:

1. In a kinetoscope, the combination of two concentric shafts on opposite sides of the projection aperture, a revolving shutter carrie by one shaft, and a revolving cut out carried by the other, the shutter and cut out extending and being revoluble across said aperture.

2. In a kinetoscope, the combination of two shafts located end to end on opposite sides of the projection aperture, a segmental shutter extending from the end of one shaft, and a segmental cut-out extending from the end of the other shaft, the shutter and cutout being revoluble in front of said aperture,

same,: and having film feeding devices mounted thereon, an armsecured to the fixed frame and projecting rearwardly beside the adjustable frame, and take-up sprockets and driving devices therefor supported by the arm behind the adjustable frame.

4. In a kinetoscope, the combination of a frame having a rearwardly projecting. arm

anda downwardly projecting arm, take-up sprockets supported by the former arm, bebind the frame, a take-up reel supported by the latter arm and gearing for simultaneously driving the sprockets and reel.

5. In a kinetoscope, the combination of a frame, having a rearwardly projecting arm and a downwardly projecting arm, shafts supported by said arms respectively and having take-up sprockets and a take-up reel thereon, respectively, and gearing between the shafts, including a friction clutch on the shaft of the take-up reel.

6. In a kinetoscopic apparatus having a light opening, means for giving an intermittent movement to a film across said opening and an objective lens, a shutter consisting of sections journaled on opposite sides of the lens and the light opening and movable past each other'in opposite directions and means for operating said shutters, substantially. as described. 1

7. In a kinetoscopic' apparatus having a light opening, means for giving an intermittent movement to a film across said opening and an obj ectivelens, a shutter consisting of sections rotatably j ournaled on opposite sides of the lens and the light opening and movable past each other in opposite direc= The use of the vertically adtions and means for 0 erating said shutters, for operating said shutters, substantially as 13 substantially as descri hed. described.

8. In a kinetoscopic apparatus having a In testimonywhereofl aflix my signature,

light opening, meansfilfor giving andintermit in presence of two Witnesses. I

5 tent movement to a m across sai o enin T and an objective lens, a shutter consis ding 0? 1 CARL LAB sections mounted on opposite sides of the Witnesses: lens and the light opening and movable past F. L. STOWELL, each other in opposite directions and means LEMUEL PATTERSON. 

